Designograph.



'To all whom i# may concern.

vin.

" NEW YORK, N. Y., ASSIGNOR' OF ONE-HALF T0 RUDOLPH DIEHL, 0E NEW YORK,N. Y. l

unnsrerroeaarn.

menaces. l

Application led December 2e, 1915. Serial No. 68,495.

Be it known that I, FiiANcrs Sram- KAMP, a citizen of the United States,resid- 'ing in the city,` county, and State of New York, have inventedcertain new and useful llmprovements in Designcgraphs, ofU which thefollowing is a speciication.

My mvention relates to a desiffnograplrof the class including devices ortracing curved designs on-paper and the primary object ofthe inventionis to provide a simple form of device for mechanically tracing numeroustypes of curves having a greater degree of complexity than is possible`with devices of this class now in general use.

My invention broadly includes a toggle f arm-type ofpencil con-trol, oneor both arms of 'which-are designed to be subjected to variablecontrolling iactors4 which thus cause a complexity of control resulting`in the formation of both closed and open curves of a great variety ofdesign.

A further object of my invention is to provide a device .of the classdescribed in which the relation of one of, the controlling members tothe other may bequickly and accuratelyv varied in its controlling'el'ect and in accordance with some set plan without aiectingthe'operative position of said controlling elements.

l attain this object broadly notvonly by varying the constants whichcontrol one or an inspection of the accompanying drawin yboth arms ofthe togglev pencil cntrol but also by varying thexangular` adjustment ofthe tracing table with reference to its engagement with the mechanismwhich con` trois the toggle.

Another object of my invention. is to provide a device forsimultaneously causing a y lnrality of simlardesigns to be arranged inpresent relation to each other.

lncidentally, the device illustrated is intended to be assembled as oneof the possible constructions which can be made-from the.

parts Yconstitutingl the steel structural elegjf'ments'of a mechanicaltoy including perforated girderstripsgand pl`atestwo types of which areknown commercially as Mechano and American lmodel builder.

Variousdother objects and advantages of v the invention will be in partobvious from vmeans of vertical struts 12 all coactin arranged to forman-opcn box-like trame for supportingB the movable parts of the device.Both the superframe and the underlframe are formed of longitudinally andtransverselydisposed side members 13 each and in part will be more fullyset forth in the following particular description of one form `ofmechanism embodying my invention, and the invention also consists incer- Snecication of Lettera Patent. V- Patented dan. 15, ilgls l tainnew 'and novel features of construction and combination of partshereinafter set forth and claimed.

In the drawings: v

Figure 1 is a plan view of a preferred embodiment of myinventionshowing` the table supporting frame in an adjusted dot and dash lineposition; and

Figs. 2 and '3 are 'respectively side and shown an open-work mainsupporting frame formed of a rectangular super-frame 10 and a similarlyshaped underframe 11 with these 4vend views in elevationl of the deviceshown in Fig. 1.'v ln vthe accompanying drawings, there is' frameelements connected at each corner by l and provided with` verticallyalined pivot-pin holes 14 equally spacedA apart along-the -length ofleach of the side members and de'- signed to receive one or more pivotpins 15. rlhese pins are designed to be inserted in any pair of holes!andare ,held in position with their upper .ends projecting above ltheside members forming the superframe by'means of stop collars 16adjustably mounted on the upwardly projecting portlon of the pivot pins.A work supporting table 17 is centrally mounted for rotary movementwithin the frame and in a plane substantially on a level with thesuperframe. The table is ar .raiiged to receive the paper or other workupon which the design is to be made. The

table and its driving mechanism are arranged to be supported from a,table frame 18 shiftably mounted in the main supporting` frame. rll`hetable frame is vertically disposed and includes upper and lowerlongitudinal members 19 and 20 corresponding in shape to the sidemembers of the main frame. The ends of each of the members 1.9 and Q0are adjustably fastened, by means of readily removable pins 21respectively toi suiiicient for both it being understood that porting`frame any of the holes 14 in the upper and lower frames. These membersare preferably braced in spaced apart relation to form a unit frame bymeans of the vertically extending struts 22 fastened therebetween. Themembers 19 and 20 are provided with spaced apart holes 23 resembling theholes 13 and the struts are fastened to these members by'rneans ofscrews 24 passed through one of the holes and into the ends of thestruts. A vertically disposed driving shaft 25 is rotatably mounted inany of the vertically. di'sposed pair of holes 23 and is driven throughthe beveled gear connection 26 from the longitudinally extending shaft27 rotatably mounted in the struts 22. This shaft is in turn driven fromthe main driving shaft 28 journaled in the struts 12. An outer end ofthe main shaft is .provided with a crank handle 29 by means of which themain shaft and parts operated thereby may be driven either`in a director reverse direction. The connection between the main shaft 28 and thelongitudinal table driving shaft 27 is preferably in the-form of afriction drive 30. This drive includes a driver in the form of a disk 31fixed to the main shaft and a round headed driven member 32 fixed to theshaft 27 in operative engagement with the disk to bedriven thereby. Themember 32 is adjustable relative to' the axis of rotation of the disk 31to vary the rotary speed of the table and for this purpose the shaft 27includes a turn-buckle 33 thus providing a convenient means for varyingthe speed of the design table with reference to the speed of the mainshaft and the pencil control actuated thereby. The' design table'properis formed of a fiat metal disk 34 loosely mountedon top of the shaft 25and a wooden plate 35 fixed to the upper face of the disk and designedto have the paper 36 fastened thereto by any suitable means, such asthumb tacks 37. A driving connection is provided between the shaft 25and the disk 34 by means of an arm 38 xed to the shaft 25 and providedwith a spring catch 39 designed to engage in any one of a plurality ofcentrally disposed apertures 40 arranged concentrically of the axis ofthe disk 34 and on the under side of the disk.

' A pair of recording tables 41 and 42 are mounted in adjusted positionon the supand are operatively driven from the main shaft 28.' Adescription of either one of these recording tables will be the twotables may be mounted either on the same side of the lmain frame or oneon one side and the other on either the opposite or an adjacent side ofthis frame. Each of these recording.'l tables includes a verticallyextending shaft 43 adjustably mounted in any of the pair of holes 14.. Adisk 44 is and above ,screws 58 to the levers.

the superframe 10..A A slide bar 45 is adjustably mounted on the disk 44and is fixed tion of the table 41. The shaft 43 is connected to the mainshaft so as to be driven thereby preferably by means of a miteredgearconnection 48. This gear connection is preferably so arranged that`raising the shaft 43 with its revolving pivot pin 47 will break theconnection between the teeth of the gears forming the connection thuspermittinn' either the main shaft or the record table driving shaft tobe adjusted relative to each other.

Further thespeed between the recording table and the main shaftmay bevaried by varying the speed ratio of gears making up the connection 48.In this way it is possi-ble to cause the rotation ofthe recording tableto be a definite function of the rotation of vthe work-table or adefinite function of the other recording table. The placing of thedesign on the paper is controlled by means of a toggle pencil controlformed of arms 49 and 50 pivotally connected at any point along theirlengths by means of a pin 51. Each of the arms is provided with openings52 corresponding in character to the holes 13 and each designed to beengaged either by both of the revolving pivot pins 47 or arranged sothat one of the holes in one of the arms is engaged by one of therevolving pins 47 and one of the holes in the other arm is engaged byone of the fixed pins 15. The

Vpencil control includes a pencil carriage including a bracket 53 of thepivotal connection between the arms.`

A pair of levers 55 are pivotally connected side by side to anupstanding member 56 of the bracket and designed tobe adjustedvertically about horizontally disposed axes of rotation. Each of thelevers is provided with a pencil band 56 designed to encircle a pencil57 or other suitable marking device. The bands are attached by means ofadjusted into frictional tight engagement with the lever and band sothat the pencils vmay be adjusted to assume any desired anglewithreference to the vertical or'the screws may be used merely as pivotsin which case the pencil is held` to the paper merely by lts ownweightland the weight of the The screws. may be reference to the design table.

` the same frame into position to dispose the j Leagues sired Vto make adefinite character'of curve,

the resultant of two movements, one an oscillatory movement abolitafixed center and the other an oscillatory movementabout a center whichis itself revolving, .one of the arms is placed on the pin 15 which hasbeen shifted in the frame into positionto bring the pencil at thedesired starting point with The other arm is placed upon one of the pins47, the driving shaft of which has been adjusted in pencil at itsdesired place on the work toggle arms. The main shaft is then rotated,causing either or both of the pencils, depending upon the arrangement ofthe arms carried by th'bracket to form one'or two similar tracings onthe paper 36. Should it be desired however, to form a character of curve-the resultant of compounding ino-' l the iixedxpin 15 is shifted to the`pin 4 of the other recording table, and the operation is repeated aspreviously, described but.

obviousl giving -a more complex curvel By movin@r the catch 39 into aninoperative position, tius disconnecting the work-table from its drivingshaft, the table may be rotated upon .the axis of the shaft into anyangular desired.y position. 1n this reset position` the catch may bereset to hold' the table in connected drivin relation with the mechanismcontrolling t e pencil control. r1`he table may be reset to rotate abouta new axis of rotation byA loosening one or thel other of the pins atthe opposite ends of the table frame, andA adjusting the same so thatthe table frame will be in a new position with reference to the mainframe. It is pos- 'is possible-to design an ever-interesting toy sibleto make this adjustment without 'affectingvthe driving connectionbetween the main shaft and the` horizontal'table driving shaft due tothe rounded construction 'of the head to the driven member 32. Byadjusting the turn-buckle the speed of the work table with reference tothe cycle of operaltion of the togglevpencil control may be carv fromstructural parts supplied by the structural mechanical element toys lnowin general use. Practically an unlimited number of beautiful and unusualdesigns may be toggle controlling member alon formed simply by varyingthe positions of l the toggle arms and a control for the pencil isprovided which is easy and positive in its operation and any design-maybe repeated simply by identifying the previous positions of thechangeable factors and replacing the toggle arms in Atheir previouspositions.

-Any desired degree of pressure engage- .ment between the pencil andpaper may be provided and by loosenin the screws 58 the pencils may becaused tol ear lightly on the paper. A multiplicity. of similar designsmay be traced simultaneously by using two or more pencils thus furtherproviding for a compflication of designs.

While .1 have shown and described, and

have pointed out in the annexed claims, cerstitutions and changes in theform and details of the device illustrated and in its operation maybemade by those skilled in the art without departing from the spirit ofthe invention.

Having thus described my invention, I claim:

1. In a device ofthe class described, a supporting frame including apair of members extending at an angle to each other, one of said membersprovided with a plurality of spaced apart in holes, apivotv pin designedto be mounte in an one of said holes, and a pencil control inc uding apair of toggle arms 'pivoted together with one of the arms pivoted tosaid pin in the member provided be understood that various omissions,sub- 'ico with' the pin holes for oscillatory movement togglecontrolling member along the same 'atdid'erent distances from the pointof intersection of saidv members, alpencil' control including a pair of'toggle arms pivoted together, one of said arms provided with e to eachotlierand y means for pivotally connecting the same to one Yof saidmembers and the other arm provided with means for pivotally connectingthe same with the other member.

3. lin af device of the class described, a supporting frame including apair of inemlbers cxtendin at an angle to each other and each providewith means for positioning a the same at didei'ent distances from thepoint of intersection of said members, a pencil control in- 'cluding a.pair of toggle arms pivoted together, one of said arms provided withmeans for pivotally connecting the same to v Y one of said members andthe other arm provided with means forpivotally connecting the samewiththe other member, said last iso named means including mechanism forcausing a point on the arm controlled thereby to travel over the path ofa closed curve.

4. 'In a device of the class described, a supporting frame including apair of members extending at an angle to each other and each providedwith means for positioning a toggle controlling member along the same atdifferent distances from the point'of intersection of said members, apencil control including a pair of toggle arms pivoted together, one ofsaid arms provided with means for pivotally connecting the same to oneof said members and the other arm provided with means for pivotallyconnecting the same with the other member, said last named meansincluding mechanism for causv ing a point on the arm controlled therebyto i e'o travel over the path of a closed curve, said mechanism'including means for varying the dimensions of said path.

5. In a device of the class described, the

-combination with a recording table,A of' a pencil `control including apair of toggle arms pivotally connected together, a supporting frame xedin place, means for` pivoting different points along each arm of thecontrol at different places on Isaid fixed frame relative to a fixedpoint on said recording table thereby tovary the normal'an-l gle betweensaid arm and to position the angle at different places relative to thefixed point of the turn-table and means Vacting on one of the arms forcausing a point on the same to travel over the path of'the closed curvethereby to cause a periodic variation of said angle.

6. In a device of the class described, a recording mechanism including adriven shaft, a recording table loosely mounted on said shaft, a drivingconnection'between said shaft and table, said connection including meansfor engaging the table at different points in its angular adjustment onthe shaft and a pencil control operatively connected to said shaft so asto be actuated therewith whereby a succeedinrr design may be traced onthe recording trible in a position displaced from the preceding similardesign.

7. In a device of the class described, a driving mechanism, a recordingtable freely mountedfor rotary movement, said mechanism including anvadjustable driving connection with said table to drive the same when setin different angularly adjusted positions, means for'adjusting theposition of said table angularly about its axls of'rotation, and apencil control operatively connected to said vmechanism to be actuatedthereby in unison with said table; e

8. In a device of the class described,are cording mechanism includinv adriven'shaft, a recording table mounted fhr rotary movement on saidshaft and .provided with a plurality of spaced apart apertures arrangedcircularlyabout the axis of rotation ofthe table and shaft, an arm fixedto the shaft and provided with a catch for engaging in any one of saidapertures whereby the table may be rotated into adjusted positionWithout affecting the position of said shaft and coactin mechanismoperatively connected to be driven in unison with said shaft.

9. In a device of the class described, a recording mechanism including adriven shaft,

acting mechanism operatively connected to be driven. in unison with saidshaft and means for shifting the axis of rotation of said shaft relativeto said coacting mechanism. f

10. In a device of `the class described a Yrecording mechanism includinga work table mounted for rotary movement, a pencil control for moving apencil over the work table, driving mechanlsm for actuatmg sald con-,t'rol and said table in unison and means for shifting the axis ofrotation of said. table intwo directions at an angle to each otherwithout affecting the normal position of said control.

11. In a device of the class described, a pencil control including apair of toggle arms pivotally connected together, means for pivotallymounting one of said arms at a definite point along its length foroscillatory movement about said point, a rotating design table having afixed axis of rotation and means carried by said table and offset fromthe axis of rotation thereof for engaging the other of said arms at apoint offset laterally of the length of said other arm.4

12.- In a device of the class described, a

pencil control including a pair of toggle arms pivotally connectedtogether, meansl for pivotally mounting one of said armsl at a definitepoint along its length for oscillatory movement about said point, arotating design table, a pivot pin carried by said table and offset fromthe axis of rotation thereof. a plate provided with a plurality of holesfixed`to the` other of said arms said arm designed to be shiftedabout'its pivotaly connection with the first named arm to bring any ofthe holes in the plate in pivoting engagement with said pin.

" j 13. In a device of the class described, a pencil control including apair of toggle arms pivotally connected together, means aaeaoee forpivotally mounting one of said arms at a definite point along its lengthfor oscillatory movement about said point, a rotating design table, apivot pin carried by said table and offset' from the axis of rotationthereof, a plate provided with a plurality of holes arranged in rowsboth parallel to and at right angles to the length of the arm attachedthereto.

14. In a device of the class described, a pencil control including apair of toggle arms pivotally connected, rotary means operativelyconnected to each of said arms to cause the points on the arms engagedthereby to travel over the paths of .closed curves.

15. In a device of the class described, the combination of a pair ofrevolving members each movable about fixed points of reference and apencilcontrol including a pair of arms pivotally-connected to each otherand pivoted to said revolving members.

16. In a device of the class described, the combination of a pair ofrevolving members each movable about fixed points of reference, a pencilcontrol including a pair of arms pivotally connected to each other andpivoted to said revolving members and means associated with one of themembers for varying its path of movement relative to its fixed point ofrevolution.

17. In a device of the class described, the combination of a pair ofrevolving members each movable about fixed points of reference and apencil control including a pair of arms pivotally connected to eachother and pivoted to said revolving members and means for varying therelative position of said revolving members.

18. In a device of the class described, the combination of a pair ofrevolving members each movable about fixed points of reference, a pencilcontrol including a pair of arms pivotally connected to each other andpivoted to said revolving members, means for varying the relativeposition of said -revolving members and for varying the distancesthereof from their fixed points of revolution.

19. In a device of the class described, a pair of designing tablesmounted for rotary movement and each provided with an element of apivotal connection, means for Ashifting one of said-elements relative tothe axis of rotation and a pencil control including a toggle formed of apair of arms each arm provided with an element of a pivoted.

connection designed to coact with one of said first named elements.

20. In avdevice of the class described, aI

designing table including a driven shaft, a plate fixed, to said shaftfor rotary movement, a bar supported from said pl'ate, a pin and slotconnection between said bar and plate for fixing the bar in adjustedposition on said plate and a pivot pin carried by said shiftable bar anddesigned to engage an element of a pencil control and means for rotatingsaid shaft.

Signed-at'NeW York city, in the county of New York and State of NewYork, this 22d day of December, A. D. 1915.

- FRANCIS A. STAINKAMP.

